Kinetoscope.



No. 832,112. PATENTBD DGT. 2, i906. D. C. WOODWORTH. KINETOSGOPE,

APPLICATION FILED OO'IHEO, 1905.

2 SHEETS-SHEET 1.

PATENTED UGT, 2, 1995.

G WOODWORTH. KINETOSUOPB.

APPLWATION HLM) ocmso, 1905 2 SHEETS-SHEET 2.

@nu @f1/M202: l/l/,O Ma/afina,

yrfwla UNITED sfr-Ares FATF. .NT oFFi on.

Y DALLAS C. woonwoarn, oF nnvanroar., IOWA.

KINETOSCOPE.

ne. i12..

Specification of Letters Patent. i

latented Oct.. 2, 1906.

Application filed ctcber 30, 1905 Serial 235.099.

To alb whom, it may concern:

Be it'` known that I, DALLAS C. Woonwonrn, a citizen of the UnitedStates, residing at Davenport, in the county of Scott and State of Iowa,have invented certain. new and useiid improvements in Kinetoscopes; andI do declare the followin to be a full, clear; and exact description othe invention, such as will. enable others skilled in the art to which.it appertains to make and use the This invention relates toimprovements in kinetoscopes.

The object of the invention is to provide animproved operating mechanismwhereby the shutter--`shaft will be caused to rotate twice foreachpicture exposed, thereby re moving the annoying and objectionableflicker i'odueed bykinetoscopes now in use.

Anot er object isto provide means whereby the pictures will be broughtopposite the O penin in the machine twice as quickly as former y and tocause pictures to remain stationary c'l posite said opening three timesas vlong as t e time required to shift said pic-v ture,'whereas themachines now in use require the same length of time 'to shift thepictures as is Given to the exposure of the pice tures, there y causingeither a too rapid running of the lm or else showing a marked ilicker onthe screen from the slow motion of theshutter.

'Another Objectis to provide a simple and inexpensive mechanism foraccomplishing the above results which may be easily applied tokinetoscopes now iu use.

lith these and other objects in view the invention consists of certainnovel features of construction, combination, and arrange- 1. view on theine 4 va rear view o invention, parts of the same bein ment of parts,as4 will be hereinafter described and claimed.A

l mounted a spur gear-wheel 3. With the wheel 3 is engaged a spurgearepinionhwhich is mounted on the end of a driveeshaft 5, on theopposite end of which is mounted a spur gear-Wheel 6. This wheel 6 isadapted to engage a spur gear-pinion 7, mounted on the end of anoperating-shaft 8, on which, near the opposite end thereof, is ixedlymounted a bevelcdgear-wheei Q. The gear-wheel 9 is engaged with a bevelgear-pinion 10, mounted. on the end of a horizontalright-angularlydisposed shuttenshaft 12, said pinion 10 be ingpfeferably one-half the size of the gear- Whel 9, whereby theshutter-shait 12 will be caused to revolve twice for each revolution ofthe operating-shaft and beveled gear 9. On the opposite end of theshutter-shaft 12 is ixedly mounted a segmental shutter 13, which isadapted to be revolved by the shaft 12 to cover and uncover theexposure-opening 12 of the machine.

Revolubly mountedin the frame 1 of the machine .are upper and lowerfilmcarrying rolls 14 and 15. The upper hlm-carrying roll is lixedlymounted upon a shaft 16, journaled in the upper portion of the frame andhaving o nits outer end a spur gear-wheel 17, which is adapted to meshwith a 'spur gearwheel 18 of 'slightly greater diameter than the Wheel17. Between the wheels 18 and the spur gear-pinion 4 on the shaft' isarranged an idle gear-.pinion 19, which is adapted to mesh with thepinion 4 and wheel 18, whereby vmotion is imparted from the drive-shaft5 through said wheels 17, 18, and 19 to the u per hlm-roll shaft 16. Thelower film-rol is mounted upon a shaft 20,

and on said shaft is also ixedly mounted a Y star-wheel 21, saidstar-wheel being here shown as substantially in the shape of a Mal--tese cross having dee tions 22, between whic the edge of the wheel isformed' with a concave or curved surface On the operating-shaft 8immediately above the star-wheel 21 is fxedly mounted a disk 24, on theinner side of which is arranged a laterallyprojecting pin or stud 25. Onsaid inner face of the disk 24 is also arranged a se mentallaterally-projecting llange 26, whic extends around a. reater part lofthe disk, the ends of said .ange terminating above and at equaldistances on each. side of `the pin 25.

the medium ofthe intermediate drive-shaftI andgears here-inbeforedescribed, said m0- notches or indenta-- IOC ros

' turning said star-wheel .and the film-roll shaft 20. Between theperiods of the engagement'of the pin 25 with the notches of i thestarwheel the flange 26 will be in engagement with the concave surfacesof said starwheel, thereby holding the same and the lower nlm-rollshafty stationary, While the shutter will lcontinue to revolve. The arurangement ofthe film on the rolls is such that when the cam 26 is inengagement with the 3 out of engagement with the concave surfaceexposure-opening. Byt A picture wil star-wheel the picture on the filmwillbeopposits the exposure-opening 12x of the ma-` chine, in whichposition 'said picture is held .during the 'passage of the flange 26over said star-wheel, -thus prolonging the time of eX -posure of saidpicture a considerably greater period than is lven to the` pictures .bymeans now in use. lfterthe flange 26 has passed of the star-Wheel thepin 25 engages one of the` notches in said wheel, thereby turning thesame and the film-roll lshaft to quickly shift the film to bring thenext icture opposite the #iis arrangement the have an exposure the timeof which is three times as greatas that required to shift the film inchanging the pictures. i At the same time the difference in size betweenthe. beveled gears 9 and 10, which operate the Vshutter-shaft, is suchthat the shutter will V be operated twice whilethe o erati-ng-shaft isturning once, thereby pro ucinof a very rapid revolution ofthe shutter,whic i will ob- -..viat e the objectionable and annoying flickerobserved in machines now in use. Sihe difference linthesize of thegear-wheel on th'e upper lilm-roll shaft over the usual size of saidwheel will compensate for the decrease in the speed or movement'jof thefilm by the srs shifting mechanism on the operating-shaft.Revolublylmounted in the lower portion of the machine is atake-upfilm-roll 27, which is mounted' u on a shaft-28, on the end of which isfixed y mounted a s ur gear-Wheel 29, the size of which is consi erablygreater than that used in the common form machine, and Withsaid'wheel 29ngag anl ment with the drive-wheel 3, whereby motion is imparted to thefilm-roll *shaft 28 to -From the foregoing description, taken inf;

connection with the accompanying drawf` ings, the construction andoperation of the]l invention will bel readily understood without reuiringa more` eXtended'explanat-ion.

aving thus described my invention, what I claim aS'neWf 21nd desire to 3secure by Letters-Patent, is. y l l i 1. In a kinetoseopethe combinationwith an'operatingshaft, of means whereby-the driven thereby at twice teratingshaft, a shutter carried by said'shut.-

v ter shaft, a revolubly mounted film roll shaft, a star-Wheellfixedlymounted on said shaft, a disk mounted on said Aoperatingshaft,a.laterally-projecting pin arrangedv on said disk to envage saidstar-wheel'and turn the same at eac l revolution of said shaft and 'sameis driven, a revolubly-mounted shuttershaft geared to saidoperating-shaft and.4

espeed of said opa lateraly-projecting segmental iiange arranged on saiddisk to engage "said star-wheel and hold said film-rollstationary w'hennot engaged` by said pin, substantially' as de scribed.

2. in a' kinetoscopef, the combination with arrl operating-shaft, ofmeans whereby the v same is driven, arevolubly-mounted` shuttershaftgeared to said' o eratin -shaft v and driven lthereby', at twice t vespee of said operating-shaft, a shutter carried by said shut# ter shaft,a revolubly mounted film' -rll, shaft, a star-wheel fiXedly mountedonsaidf shaft, a disk mounted on' said operatingshaft, alaterally-projecting pin arranged on said disk to engage said starwheeland turning the same at each revolution of said shaft. alaterally-projecting segmental iiange arranged on said disk to engagesaid star-wheel to hold said film-roll stationary Whennot engaged bysaid in, and gearing for operating said star-whee. tially as described.n I

In testimony whereof I have hereunto set andY said film-roll, substan-IvIO my hand'in presence of two-subscribing witv nesses. A

DALLAS C. WOODWORTH. Witnesses v ALFRED PARSONS, W, J BRYsoN.

